A LabeledPoint is a popular structure used to package data as a Vector + a Label which can be purposed for supervised machine learning algorithms. A typical layout of the LabeledPoint is given here:
Seq( LabeledPoint (Label, Vector(data, data, data)) ...... LabeledPoint (Label, Vector(data, data, data)) )
Please note that not only dense but also sparse vectors can be used with LabeledPoint, which will make a huge difference in efficiency especially if you have a large and sparse dataset housed in the driver during testing and development.
